Stop-cock.



A. D. HERSGHLER.

STOP COCK.

APPLICATION IILED JULY 2, 1908.

909,409, Patented Jan. 12, 1909.

Qnoenkoz W1 hwomo UNrrEn Arma rmo STOP-COCK.

To all whom it may concern:

Be it known that I, ALBERT D. HERSOHLER, citizen of the United States,residing at Ashland, in the county of Ashland and State of Ohio, haveinvented certain new and useful Improvements in Stop-Cocks, of which thefollowing is a specification.

The object of this invention is to form an automatic stop cock forflushing tanks, which will be simple in construction, effective in itsaction, and having a plunger carrying the valve disk which has butlittle friction and is not subject to corrosion.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a side elevation of the stopcock, parts being broken away;and Fig. 2 is a detail of the plunger lever.

Referring specifically to the drawings, in which identical parts areindicated by the same number, 19 indicates a section of the bottom ofthe water tank, through which the supply pipe 1 extends. A threadedsleeve 21 fits over pipe 1 where it passes through tank 19 and lock nut22 pulls the flange 20 on the upper end of the sleeve tight against thetank bottom, making a water tight joint and holding the pipe 1 rigidlyin place.

The supply pipe 1 has a nozzle 2 at the top terminating in a seat 3, andhas an upwardly projecting arm 10 with the upper overhanging part 11.

A stem or plunger 7, with a threaded block 8 at its lower end is mountedcentrally above the seat 3. A rubber disk 6 is held to block 8 by therib 5 in a sleeve 4 which has an inner thread above the rib 5 to screwon the block 8. The lower end of the sleeve prevents the water fromsplashing as it flows out, and directs it downwardly.

The plunger 7 is mounted in vertical position parallel to the arm 10 bymeans of a link 13, and a lever 12. Link 13 is pivoted to arm 10 at 23and to plunger 7 at 23". Lever 12 is pivoted to the arm at 23 and to theplunger at 23 The forked end 12 of the lever fits over arm 10 and theplunger 7 extends loosely through a hole 12 in the lever.

A lever 14 is pivoted to the outer end of the lever at 23 and to a link15 at 23. This link 15, which supports the lever 14 is piv-Specification of Letters Patent.

Application filed July 2, 1908.

Patented Jan. 12, 1909.

Serial No. 441,629.

oted to an eye bolt 16 at 23 the eye bolt being screwed through the endof the overhanging arm 11. A stem 17 is screwed into a socket in theouter end of the-lever 14 and this stem carries the ball float 18 whichis usually a hollow metal ball.

The nuts 9 allow the eye bolt 16 to be adjusted to bring the disk 6nearer to or farther from seat 3, as in case disk 6 wears partly away orwhen a new disk is inserted.

In operation, the float 18 drops downward when the water is let out ofthe tank. This action raises disk 6 away from seat 3, the lever 14turning on its fulcrum 23 which opens the cock and allows water to entertank. As the water fills the tank the fioat 18 rises and slowly forcesdisk 6 down until the water supply is shut ofi".

The manner in which the plunger is supported by parallel links causesthe valve disk to seat squarely upon the seat 3. There is no chance forthe valve to become stuck from friction or dirt, and the adjustmentpermitted by the screw 16 allows a good fit to be effected, at thevalve.

I claim:

1. The combination of a pipe having a valve seat at the end, a support,a valve and its stein, movable to and from the seat, a link connectingthe support and stem, a lever fulcrumed on the support and pivoted tothe stem, and a float operatively connected to the lever, to open andclose the valve.

2. The combination with a support and a reciprocating'valve, of a leverpivoted on the support and connected to the valve stem, a bent leverprovided with a float, connected to said lever, and a swinging linkpivotally connected to the support and to the bent lever and forming afulcrum for the latter.

3. The combination with a support and a reciprocating valve, of a leverprovided with a float and operatively connected to the valve, a linkconnected at one end to the lever and forming a fulcrum for the same,and a connection between the other end of the link and the support,adjustable to vary the position of the valve.

4. The combination of a pipe having a valve seat at the end, a supportprojecting upwardly above the seat and having an arm overhanging thesame, a valve and its stem extending upwardly parallel to the support,In testimony whereof I affix my signature parallel links connecting thestem and supin presence of two Witnesses. v 7 port, one link beingextended to form a ALBERT D HERSOHLER lever, a bent lever connected atone end to 5 said lever and having a float at the other Witnesses:

end, and a link connecting the arm and the JAS. A. RALsToN, bent lever.VIRGIL G. ROFF.

